CVE-2024-20426

HIGH
Published Oct 23, 2024 Modified Nov 5, 2024 CWE-476

Description

A vulnerability in the Internet Key Exchange version 2 (IKEv2) protocol for VPN termination of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted IKEv2 traffic to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

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CVSS v3.1 Score

8.6
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor Product
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco adaptive_security_appliance_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software
cisco firepower_threat_defense_software

References

Frequently Asked Questions

What is CVE-2024-20426? +
A vulnerability in the Internet Key Exchange version 2 (IKEv2) protocol for VPN termination of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted IKEv2 traffic to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. It has a CVSS v3.1 base score of 8.6 (HIGH).
How severe is CVE-2024-20426? +
CVE-2024-20426 has a CVSS v3.1 score of 8.6 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-20426? +
CVE-2024-20426 affects products from cisco, specifically: adaptive_security_appliance_software, firepower_threat_defense_software. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-20426? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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